Wednesday 25 January 2012

AF Fine-Tuning


Calibrate lenses to improve issues of lens' focusing "slightly off the mark" (focus shifting) where soft images are caused by front or back focusing (several cms or inches) off the primary ofcusing target area on the subject


in Setup Menu select AF fine tune, change the value depends on the lens has

  • for back-focused (the background is in focus while the subject and foreground is out of focus), use positive values
  • front-focused (when the foreground is in focus while the subject and background is out of focus), use nagative values



Two things to keep in mind if AF Fine Tuning is on:

  1. the camera might have difficulty in focusing at infinity and minimum focus distances; depending on what AF Fine-Tuning value is set at
  2. when use LiveView in Tripod Mode, AF Fine-Tuning will be disabled, so you will need to focus the lens manually instead




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